diff --git a/radio/src/targets/common/arm/stm32/stm32_pulse_driver.cpp b/radio/src/targets/common/arm/stm32/stm32_pulse_driver.cpp
index b339e09f14e..dbcb470b407 100644
--- a/radio/src/targets/common/arm/stm32/stm32_pulse_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/stm32_pulse_driver.cpp
@@ -70,7 +70,11 @@ void stm32_pulse_init(const stm32_pulse_timer_t* tim, uint32_t freq)
   }
   
   timInit.Prescaler = __LL_TIM_CALC_PSC(tim->TIM_Freq, freq);
-  timInit.Autoreload = STM32_DEFAULT_TIMER_AUTORELOAD;
+  if (IS_TIM_32B_COUNTER_INSTANCE(tim->TIMx)) {
+    timInit.Autoreload = 0xFFFFFFFFUL;
+  } else {
+    timInit.Autoreload = STM32_DEFAULT_TIMER_AUTORELOAD;
+  }
 
   enable_tim_clock(tim->TIMx);
   LL_TIM_Init(tim->TIMx, &timInit);